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Descriptive catalogue of the Washington relics in the United States National Museum
Vol 49, Iss 2092, Page 1
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Notes on some United States grasshoppers
Vol 49, Page 25
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The Recent and fossil mollusks of the genus Rissoina from the west coast of America
Vol 49, Iss 2094, Page 33
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A revision of the North American Ichneumon-flies of the subfamily Opiinae
Vol 49, Iss 2095, Page 63
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Descriptions of two new species of Entomostraca from Colorado, with notes on other species
Vol 49, Iss 2096, Page 97
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Flies of the genus Agromyza, related to Agromyza virens
Vol 49, Iss 2097, Page 103
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Notes on the composition and structure of the Indarch, Russia, meteoric stone
Vol 49, Iss 2098, Page 109
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The dipterous genus Symphoromyia in North America
Vol 49, Iss 2099, Page 113
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The genera and subgenera of raccoons and their allies
Vol 49, Iss 2100, Page 143
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Notes on the flies of the genus Pseudodinia, with description of a new species
Vol 49, Iss 2101, Page 151
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A peculiar oolite from Bethlehem, Pennsylvania
Vol 49, Iss 2102, Page 153
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On a collection of Javanese crane-flies (Tipulidae, Diptera) in the United States national museum
Vol 49, Iss 2103, Page 157
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The Philippine land shells of the genus Schistoloma
Vol 49, Iss 2104, Page 195
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Descriptions of new species of Hymenoptera
Vol 49, Iss 2105, Page 205
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Critical notes on the subspecies of the spotted owl, Strix occidentalis (Xantus)
Vol 49, Iss 2106, Page 251
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Notes on the life history and ecology of the dragonflies (Odonata) of Washington and Oregon
Vol 49, Iss 2107, Page 259
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Report on some carbonic acid tests on the weathering of marbles and limestones
Vol 49, Iss 2108, Page 347
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A collection of amphibians and reptiles from Gogebic County, Michigan
Vol 49, Iss 2109, Page 351
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A new restoration of Stegosaurus
Vol 49, Iss 2110, Page 355
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A colored drawing of the Medeba mosaic map of Palestine in the United States National Museum
Vol 49, Iss 2111, Page 359
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An albino salamander, Spelerpes bilineatus
Vol 49, Iss 2112, Page 377
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A contribution to the knowledge of the extinct sirenian Desmostylus hesperus Marsh
Vol 49, Iss 2113, Page 381
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Eperetmus, a new genus of Trachomedusae
Vol 49, Page 399
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New Neotropical muscoid flies
Vol 49, Iss 2115, Page 405
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A review of some bivalve shells of the group Anatinacea from the west coast of America
Vol 49, Iss 2116, Page 441
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A new crustacean, Diaptomus virginiensis, and a description of Diaptomustyrelli Poppe
Vol 49, Iss 2117, Page 457
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Notes on allophanite, fuchsite, and triphylite
Vol 49, Iss 2118, Page 463
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British Fossil insects
Vol 49, Iss 2119, Page 469
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On the fore lirnb of Allosaurus fragilis
Vol 49, Iss 2120, Page 501
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A synopsis of the races of the crested tern, Thalasseus bergii(Lichtenstein)
Vol 49, Iss 2121, Page 515
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Three new species of Anodontites from Brazil
Vol 49, Iss 2122, Page 527
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An account of the Crustacea collected by the Walker Expedition to Santa Marta, Colombia
Vol 49, Iss 2123, Page 531
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Notes on the species of the molluscan subgenus Nucella inhabiting the northwest coast of America and adjacent regions
Vol 49, Iss 2124, Page 557
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Notes on a collection of fishes made by Dr. Edgar A. Mearns from rivers tributary to the Gulf of California
Vol 49, Iss 2125, Page 573
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New fresh-water shells from the Ozark Mountains
Vol 49, Iss 2126, Page 587
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Osteology of Thescelosaurus, an orthopodous dinosaur from the Lance formation of Wyoming
Vol 49, Page 591
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Diagnoses of new genera of muscoid flies founded on old species
Vol 49, Iss 2128, Page 617
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The euphausiacean crustaceans of the "Albatross" Expedition to the Philippines
Vol 49, Page 635
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The Genera of the Tettiginiid Insects of the Subfamily Rhaphidophorinae Found in America North of Mexico
Vol 49, Iss 2130, Page 655